Ricardo Garay 
Dropboy Series – vol.4 

Dropboy is a series of books where the title character that becomes liquid, gets involved in many adventures. He defends his friends Andy, Takao, Anny, and Roa from the fumbling villain Doc Folly, his henchman Roig and the blue bats Frit and Frat. Are many action-packed adventures with a unique message: friendship above all else. In this book, Dropboy and the gang are off on an island adventure where they intend to romp and play, but Doc Folly has a plan of his own for them…